Title:
記録方法及び光ディスク装置
Document Type and Number:
Japanese Patent JP4474386
Kind Code:
B2
Abstract:
An objective of the present invention is to enhance reliability of recorded data by preventing deterioration of OPC (Optimum Power Calibration) accuracy due to an influence of inter-layer interference in an optical disk device capable of writing in a multilayer optical disk. Aiming at the objective, a relationship between asymmetry and a signal modulation depth, which are measured by use of a standard driver is referred, and thereby an offset caused by a device, a disk, a writing state of another layer and the like is compensated. Thus, OPC is executed.
Inventors:
Koichi Watanabe
Hiroyuki Minemura
Kobayashi Sanki
Kazuhiro Oda
Hiroyuki Minemura
Kobayashi Sanki
Kazuhiro Oda
Application Number:
JP2006150425A
Publication Date:
June 02, 2010
Filing Date:
May 30, 2006
Export Citation:
Assignee:
株式会社日立製作所
株式会社日立エルジーデータストレージ
株式会社日立エルジーデータストレージ
International Classes:
G11B7/0045; G11B7/125
Domestic Patent References:
| JP2006120281A | ||||
| JP2005071396A | ||||
| JP2005149610A |
Attorney, Agent or Firm:
Yusuke Hiraki